Alright, let's work through 47147851 times 42085154 step by step
47147851 × 42085154 = 42085154 × (47147851)
+ 42085154 × 1 that results in 42085154
+ 42085154 × 50 which equals 2104257700
+ 42085154 × 800 that equals 33668123200
+ 42085154 × 7000 giving us 294596078000
+ 42085154 × 40000 producing 1683406160000
+ 42085154 × 100000 resulting in 4208515400000
+ 42085154 × 7000000 producing 294596078000000
+ 42085154 × 40000000 that is equal 1683406160000000

= 1984224570104054
